class.ilExcCriteriaText.php

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<?php

/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once "Modules/Exercise/classes/class.ilExcCriteria.php";

class ilExcCriteriaText extends ilExcCriteria
{
        public function getType()
        {
                return "text";
        }
        
        public function setMinChars($a_value)
        {
                $this->setDefinition(array("chars" => (int)$a_value));
        }
        
        public function getMinChars()
        {               
                $def = $this->getDefinition();
                if(is_array($def))
                {
                        return $def["chars"];
                }
        }
        
        //
        // ASSIGNMENT EDITOR
        // 
        
        public function initCustomForm(ilPropertyFormGUI $a_form)
        {
                global $lng;
                
                $peer_char_tgl = new ilCheckboxInputGUI($lng->txt("exc_peer_review_min_chars_tgl"), "peer_char_tgl");
                $a_form->addItem($peer_char_tgl);
                
                $peer_char = new ilNumberInputGUI($lng->txt("exc_peer_review_min_chars"), "peer_char");
                $peer_char->setInfo($lng->txt("exc_peer_review_min_chars_info"));
                $peer_char->setRequired(true);
                $peer_char->setSize(3);
                $peer_char_tgl->addSubItem($peer_char);
        }
        
        public function exportCustomForm(ilPropertyFormGUI $a_form)
        {
                $min = $this->getMinChars();
                if($min)
                {
                        $a_form->getItemByPostVar("peer_char_tgl")->setChecked(true);
                        $a_form->getItemByPostVar("peer_char")->setValue($min);
                }
        }
        
        public function importCustomForm(ilPropertyFormGUI $a_form)
        {
                $this->setDefinition(null);                     
                
                if($a_form->getInput("peer_char_tgl"))
                {                       
                        $this->setMinChars($a_form->getInput("peer_char"));
                }                               
        }       
        
        
        // PEER REVIEW
        
        public function addToPeerReviewForm($a_value = null)
        {               
                global $lng;
                
                $info = array();
                if($this->getDescription())
                {
                        $info[] = $this->getDescription();
                }
                if($this->getMinChars())
                {
                        $info[] = $lng->txt("exc_peer_review_min_chars").": ".$this->getMinChars();
                }                       
                $info = implode("<br />", $info);
                
                $input = new ilTextAreaInputGUI($this->getTitle(), "prccc_text_".$this->getId());
                $input->setRows(10);
                $input->setInfo($info);
                $input->setRequired($this->isRequired());
                $input->setValue($a_value);
                
                $this->form->addItem($input);
        }
         
        public function importFromPeerReviewForm()
        {
                return trim($this->form->getInput("prccc_text_".$this->getId()));                                                               
        }
        
        public function validate($a_value)
        {                               
                global $lng;
                
                if(!$this->hasValue($a_value) && 
                        !$this->isRequired())
                {
                        return true;
                }
                
                $min = $this->getMinChars();
                if($min)
                {
                        include_once "Services/Utilities/classes/class.ilStr.php";
                        if(ilStr::strLen($a_value) < $min)
                        {
                                if($this->form)
                                {
                                        $mess = sprintf($lng->txt("exc_peer_review_chars_invalid"), $min);
                                        $this->form->getItemByPostVar("prccc_text_".$this->getId())->setAlert($mess);
                                }
                                return false;
                        }                       
                }                                               
                return true;
        }
        
        public function hasValue($a_value)
        {
                return (bool)strlen($a_value);
        }
        
        public function getHTML($a_value)
        {
                return nl2br($a_value);
        }
}